Now they changed many many features that were perfect before to be way more complicated now... eg the vat system, price showing (still dont get it), checkout-site.
Sorry, but I think you're going to the complete wrong direction.
I have a lot of coding knowledge and VM knowledge, but I'm too tired to solve all those issues and questions I have with the new VM2.
I wish, they had just improved the features from VM1 and not turned everything upside down.
Thank you for sharing your insight with us, VAT is a simple matter of adding a tax. If you are referring to the way tax is displayed on the products page, this can easily be adjusted with radio buttons in the administrator/index.php?option=com_virtuemart&view=config >> configuration > checkout.
Hope this helps, if not, please head over to the VirtueMart forum for help.
Thanks a lot!